. La fleuriste américain : un journal hebdomadaire pour le commerce. La floriculture ; fleuristes. 616 l'American Fleuriste. T6 avril, le Desonptlve partieulirs-métiers connexes avec des dessins ou des photographies, ii-possible de tout nouvel appa- ratus ou dispositif qui peut s'avérer utile de l'échange sont sollicitées pour ce ministère. Engrais bactériens. La découverte du mécanisme d'nitrlficatio'n et la fixation de l'azote atmos- pheric par les bactéries des nodosités racinaires, a rapidement conduit à des tentatives de faciliter le processus par l'ajout de nitro- gen fixation bactéries. En 1895, Miller et Hiltner breveté un procédé d'en- oculati

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. The American florist : a weekly journal for the trade. Floriculture; Florists. 616 The American Florist. April t6, The Allied Trades Desonptlve partieulirs—with drawings or photographs, ii possible—of any new appa- ratus or device which may prove helpful to the trade are solicited for this department. Bacterial Fertilizers. The discovery of the mechanism of nitrlficatio'n and the fixation of atmos- pheric nitrogen by the bacteria of root nodules, soon led to attempts to aid the process by the addition of nitro- gen-fixing bacteria. In 1895, Nobbe and Hiltner patented a process of in- oculating peas and beans and the soil in which they grow by soaking the seed with an infusion of a gelatin culture of the bacteria of the root nodules. Bayer offered a pure culture of Ellenbach's bacillus mixed with potato meal, but Maerker soon con- cluded, from the contradictory results obtained, that the preparation had failed to prove its value. In 1904 the United States Bureau of Agriculture distributed 12, 000 boxes of bacterial cultures, which appear to have pro- duced good results, in the majority of cases. But the effect of these preparations is uncertain, as the abrupt change of medium may avert the development of the bacteria. The soil naturally swarms with nitrifying bacteria, but their growth may be checked by var- ious causes, whicli will have the same effect on the few millions that are added. Stocklasa has endeavored to obtain hardier varieties by cultivating the bacteria in a large mass of earth and has obtained remarkable results, but in view of the uncertainty mentioned above, it is prudent to defer judgment until several more years of experiment have elapsed. A. F. ureenhouse Building:. Lockport, N. Y.—White Bros., one greenhouse, 40x175 feet; D. T. Mc- Carthy & Sons, propagating house; Fred Lewis, addition to greenhouses. Sedalia, Mo.—The Archias' Floral Co., three houses 18x150 feet, for roses and carnations. Shawnee, Okla.—Brenner Floral Co., one gr

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